Aircraft



FIG. 1 is an isometric view of an aircraft showing the new design;

FIG. 2 is another isometric view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

In the drawings, the claimed design is defined by the shaded surfaces. The broken lines in the drawings represent portions of the aircraft that form no part of the claimed design. 

CLAIM The ornamental design for an aircraft, as shown and described. 